(If you experience any bug please contact me in mail I will fix it in short time) This type of wall breaker game can help you to impove your vision in a pleasure way. You must play the game with 3D glasses you can't play without the glasses. You can calibrate the game to be visible the paddle only for one eye the ball for the other eye only in that way the eyes forced to work together as a team and help to improve vision in the most modern way. Please read the following brief to get a picture about the purposes. Lazy eye \Amblyopia is a visual disorder in which the brain partially or wholly ignores input from one eye. The popular video game has been found to be effective at treating adult amblyopia, also known as 'lazy eye', according to new research conducted by scientists. Playing the puzzle game requires information to be sent to both eyes, making them work cooperatively. By making both eyes cooperate, the amblyopic brain is able to relearn as a result of an increase in the level of plasticity in the brain. (You must have a two color glass (3D glass) the color is not important because you can adjust the colors in the app as you wish) If you encounter any issue please contact me and send me the name of your device and a description about the issue and I will fix it as soon as possible, thanks.